650706481 has 2 divisors, whose sum is σ = 650706482. Its totient is φ = 650706480.

The previous prime is 650706443. The next prime is 650706491. The reversal of 650706481 is 184607056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500864400 + 149842081 = 22380^2 + 12241^2 .

It is a cyclic number.

It is not a de Polignac number, because 650706481 - 2⁹ = 650705969 is a prime.

It is a super-2 number, since 2×650706481² = 846837848830806722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 650706481.

It is not a weakly prime, because it can be changed into another prime (650706431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325353240 + 325353241.

It is an arithmetic number, because the mean of its divisors is an integer number (325353241).

Almost surely, 2^650706481 is an apocalyptic number.

It is an amenable number.

650706481 is a deficient number, since it is larger than the sum of its proper divisors (1).

650706481 is an equidigital number, since it uses as much as digits as its factorization.

650706481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 650706481 is about 25508.9490375437. The cubic root of 650706481 is about 866.5528283581.

The spelling of 650706481 in words is "six hundred fifty million, seven hundred six thousand, four hundred eighty-one".